Pump.



F. c. CROWE.

PUMP.

APPLICATION FILED JULY 2, 1914.

Patented Jan. 25, 1916.

3 SHEETS-SHEET 1.

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F. C. CROWE.

PUMP.

APPLICATION FILED JULY 2. 19M.

Patented Jan. 25, 1916.

3 SHEETS-SHEET 2.

I ammo z d'er/c/r C from WMWM Tm: COLUMBIA PLANQGRAPH :0, WASHINGTON, D. c.

F. C. CROWE.

PUMP.

APPLICATION FILED JULY 2,1914.

1,169,243. Patented Jan. 25, 1916.

a SHEETS-SHEET 3'.

IIIIIIHI /6 h m m awe/whoa Evder/c/r Caron e To all whom it may concern;

FREDERICK c. cnown', or sroKAn WASHINGTON.

PUMP.

Specification of Letters Patent.

Patented J an. 25, 1916.

Application filed @1572, 1914. Serial No. 84.8,590.

Be it known'thatl, F animator; CffCnowE, a citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented'certain v new and useful Improvements in Pumps,

of which the following is a specification. The object of this invention is to provide an improved pump structure which involves an improved form of pump and a novel construction of water motor for operating the pump, the invention residing in the combination of the two and 'also in the pump and water motor as separate entities of in vention.

As a water motor, my invention includes a motor bucket or receptacle tiltably supported in a running stream in such a manner as to be filled with water on one tilting movement, so as to be actuated by the weight of the water to tilt the receptacle into another position, means being provided for causing discharge from the receptacle when the latter is" moved under the weight of its contents.

A further object is. to provide an improved pumpstructure for operation by said motor, said pump structure embodying a pump proper andadash pot device in connection therewith, whereby the pump structure may function to control operation of the motor.

Other features and objects of the invention will be more fully described in connection with the accompanying drawings, and will be more particularly pointed out in and by the appended claims.

In the drawings: Figure 1 is a view in sideelevation with the greater portion of the structure in section, showing one form of the device of my invention interposed in a running stream. Fig. 2 is a view similar to Fig. 1 with the parts in a different, position. Fig. 3 is a view in elevation looking from the left of Fig. 1. Fig. 1 is a sectional view on line 44 of Fig. 1. Fig. 5 is a sectional view on line 5-5 of Fig. 1. Fig. 6 is a view in elevation of a valve controlling member forming a part of my invention.

Like characters of reference designate similar parts throughout the different figures of the drawings.

That part of the structure of my invention whichrelates to the water motor is particularly designed for operation in a running stream at a point where the bed affords a declivity,as indicated at 1, with respect to the bed 2,'above such point. However, in

V the absence of a natural declivity, my invention may be disposed adjacent a dam, as indicated by dotted lines 3.

Referring more particularly to the structure illustrated, at indicates a motor bucket or receptacle having an open ingress end 5,

which may comprise a normally open portion of an end wall (3, a closed end 7 and is provided with an opening 8 which maybe formed in the bottom wall 9 of the bucket. A valve closure 10 is shown pivoted at 11 to the bottom wall 9 in such a manner that thecontents of the bucket will act to maintain the closure 10 in a position to close the opening 8.

Means is provided for tiltably mounting the motor bucket between its ends in such proximity to the running stream that when its ingress end is lowered into the position shown in Fig. 1, the bucket will take water from the stream to tilt the bucket, by the weight of the water, into the position shown in'Fig. 2, wherein the ingress end will be elevated above the surface of the water in the stream. As illustrated, such means is in the form of a frame embodying horizontal longitudinal members 12 supported by'front and rear uprights 13 and 14, respectively, and connected by front and rear transverse members 15 and 16.. Depending from the horizontal member 12 are hangers 1'? in which a hanger shaft 18 is journaled,the hanger shaft 18 being suitably connected with the side walls of the motor receptacle or bucket 4 in a manner to pendantly support the same in the manner shown. In order that the weight of the contents of the bucket may act more responsively and positively to tilt the same and to also afford a greater leverage, I dispose the hanger shaft 18 more closely to the ingress end 5 than to the egress end 7 although this is not absolutely essential in vie-w of the fact that water rushing toward end wall 19 would always act to tilt the bucket into a discharging position because of the accumulating weight of water at the egress end resulting from abrupt stoppage of the current by end wall 19. In the present construction, the center of gravity of the bucket is toward the discharge end with respect to the tilting shaft 18, and in order that the bucket may be returned to an intake position, as shown in Fig. 1, from the position shown in Fig. 2, I provide means framework, as indicated at 24 and to the bucket as indicated at 25. W

In order to gain the fullest advantage'of power, I provide a valve operating means for controlling egress of the contents from the bucket, which is adapted to quickly open the than to pivot 28, I pivotally connect at 31,

one member 32 of my improved lost motion connection. Member 32 is provided with a pin 33 which is slidable in a slot 3% formed in the other member 35 of said lost motion connection. Said slotted member 35 is pivoted at 36 to the supporting frame. Now it will be seen that the pin 33 will travel throughout the length of slot 34 before arm 29 is actuated, on descent of the discharge end 7, to open closure 10, and it will be further noted, that the quick opening and what may be termed as the delayed opening of closure 10 will be further increased or retarded by the disposition of the pivot 31 in such close ad acency to pivot 30. When the valve closure 10 is finally opened, it will not only be ouicklv opened but it will also be fully opened so as to give a sudden and full capacity discharge for the contents of the bucket, It will further benoted that the path of the water through the bucket is in the same general direction as the current of the stream and thereby full advantage of stream power is utilized. Of course, it will be understood that power may be taken from thismotor for any purposes desired, and while I have shown the same connected up with a pump structure, I do not wish to be limited to this association, although it will be understood by the following description that the novel form of pump structure provided, patentably coacts interdependently with my improved motor. A pump cylinder 37 is interposed in the stream. and may be anchored in any suitable manner and which is provided with an intake pipe 38 and an outlet pipe 39. The intake pipe 38 is provided with a nonreturn valve comprising a casing 40 having a valve closure 41 which is arranged to open toward the cylinder and close in movement away from the cylinder. A pipe 42 may lead from the casing 40 into the stream for entrance of water into cylinder 37. The outlet pipe 39 is provided with a non-return valve casing 43 having a hinged closure 4% arranged to open away from cylinder 37 andclose toward cylinder 37. A delivery pipe 45 leadsfrom casing 43 to any point of disposition for the pumpedwater. A'piston A6 is arranged to reciprocate in cylinder 37, and the piston may be provided with flap valves &7 for closing passages 48- on upward strokes of the piston, to discharge through outlet 39, the flaps 47 open ing on downward movement of the piston 46 to permit supplied water to pass the pis-' ton and flow into the upper part of the cylinder 37. A piston rods?) is connected with piston 46, at one end of said rod, the other end of said rod extending through an air controlling cylinder 50 and being connected with pistonf51, which is reciprocable in said cylinder 50. In order to prevent vacuum interference against operation, I provide an escape valve 52, which will normally be open to, a limited extent and which is con nected with the upper end of cylinder 50 to permit of limited ingress and egress of air. I I

The working or upward stroke of pistion l6uwill impose some load of a considerable nature on the motor, but I also provide air controlling valve means whereby movementfof the piston 51 may be controlled to obtain the proper stroke of piston 46, As illustrated, a valve casing'53 is connected with and communicates with cylinder 50 and is provided with an outlet 54:, which may include an outlet pipe 55. Inter-posed in the casing 53 between cylinder 50 and outlet 55 is a valve closure which may be of the rotating type and which is shown in the form of acap 56 provided with an opening 57 adapted to be brought into and out of registry with outlet 55. A stem 58 extends upwardly from the cap valve 56 through the casing 53 and carries a radially extending arm 59. The rod structure 49, connecting pistons t6 and 51 is preferably formed in two parts comprising thepump rod 49 and the dash pot rod 60, the latter being directly connected with piston 51.'

The dash and pump rods are shown pivot ed at 61 and 62 with links 63 and 64, respectively. An arm 65, secured to, the motor bucket 4t, rigidly, is pivoted at 66 to links 63 and 64L, whereby the said links are connected to .form a piston rod structure operatively' connecting the pistons or" both cylinders. On the dash rod 60, I adjustably mount by means of a collar 67 fixed by a set screw 68, a controlling valve operating member 69. Said operating member 69 is held to a linear path of movement by a raeata which may be in {the formfofa lotfhaving an elongatedclosing portion W a'relatively short opening portion 71 connect ed an intermediate actuating portion 72. Arm 59 projects intosaid slot an'd on reciprocating movement being, imparted to said member 69 there will be "roan-y movem n mr t d ,ar '5 1 naaml lo e fscent of the egress end thereof, substantially as described.

the controlling valve. 4

Assuming that the motor bucket or receptacle is in the position shown in Fig. 1, and the water is rushing into the same, it will be clear that the bucket will not descend with the same force with a slight quantity of water therein as it would with a considerable quantity because the water would not only have to overcome the counterweight but also the load imposed in operating the pump piston. Therefore, the slow egress or leakage of air through valve 52 will cause the piston 51 to rise very slowly, at the start, thereby insuring an effective fill of the bucket, so as to get the greatest amount of pumping power. As the bucket lowers and the piston 51 and operating member 69 rise to a point where the operating portion or cam 7 2 reaches arm 59, then valve 56 will be relatively quickly opened into full registry with exhaust 55 whereupon the only re sistance to movement of the .bucket will be imparted by the pump, and therefore the bucket will descend to the position shown in Fig. 2 relatively quickly under the weight of a maximum amount of water. Just before the completion of the downward movement of the egress end of the bucket 41:, the pin 33 reaches the lower end of slot 3 1, thereby opening valve 10. After the valve 10 is opened, water is discharged and the counterweight 21 will return the bucket to the position shown in Fig. 1 and because of the greater length of slot portion 70, there will be a free admission of air into dash cylinder 50 during the greater portion of the descent of piston 51. Furthermore, any resistance against descent of piston 46 will be neutralized by free passage afforded by flap valves 17. During a short final portion of the return movement to the position shown in Fig. 1, valve 56 will be practically closed, but this will be at a time when the counterweight has the greatest leverage.

It is believed that the advantages and utility of my invention will be clearly understood from the foregoing description, and while I have herein shown and described one specific form of my invention, I do not wish to be limited thereto except for such limitations as the claims may import.

I claim 1. In a water motor for streams, a motor use an. Op we "adieu i egress "end, means tiltablyf su porting said err its ends with its ingress end ijd the current, lve for'the c. L iorm ally acting to'jlower thefingress 1 othe stream to fill cause thelatter to ,thereaf tilt" under the lowerthe egress end, and m cans foropen lngusaidivalve. to empty .the bucketon, de-

2. In a water motor for streams, a motor bucket having an open ingress end and an egress end, means tiltably supporting said bucket between its ends with its ingress end opening toward the current, a valve for the egress end of said bucket, counterweight means normally acting to lower the ingress end into the stream to fill the bucket and cause the latter to thereafter tilt under the load of the contents to elevate the ingress and lower the egress end, and means for quickly opening said valve just prior to the limit of descent of the egress end of said bucket, substantially as described.

3. In a water motor for streams, a motor bucket having an open ingress end and an egress end, means tiltably supporting said bucket between its ends with its ingress end opening toward the current, a valve for the egress end of said bucket, counterweight means normally acting to lower the ingress end into the stream to fill the bucket and cause the latter to thereafter tilt under the load of the contents to elevate the ingress and lower the egress end, and a lost motion connection between said valve and support ing means for opening the former on descent of the egress end of said bucket, substantially as described.

4. In a water motor for streams, a motor bucket having a normally open ingress end and an egress end, means connected with the bucket nearer the ingress than the egress end for tiltably supporting the bucket With the ingress end opening toward the current, a valve for the egress end of said bucket, means normally acting to lower the ingress end into the stream to fill the bucket and thereby cause the contents to tilt the egress end downwardly, and means for opening said valve to empty the bucket on descent of the egress end thereof, substantially as for controlling egress from said dash pot cylinder, an operating member actuated by said rod structure for operating said valve,

weight 1e bucket and ntents to eleva e'theingres's and t and awwater motor operated by; said stream for actuating-said rod structure, substa n; tially as described. g1

6.111 a ;combined Water motor, and pump, areciprocating pump structure disposed a stream and having a p'1'1mp.. pi tor1 rod structure, a daslrpot pistonand a dashpot cylinder therefor With the dashpot piston connected With said rod structure, a valve 10 for controllingegress from suiddash pot cylinder, an. operating nwmber actuated .by said rodstructure for operating saidvalve, and means forQoperating said rodfis't'ructure, substantiallyas described. e In testimony whereof I aflix my signature in presence. of tWo Witnesses. FREDERICK C. CROWE.

Witnesses"; V i

I HAROLDSG'ANTLEBURY,

1 'EDKA BROYLES.

Copies of pa tent may be obtained for i iw ze eents each, b y adtlre s' sing the Commissioner of'latents, Washington, D. G. 

